3 things you need to know about medical marijuana in Texas 3 things you need to know about medical marijuana in Texas Do you qualify for a prescription? Photo courtesy of Texas Original Compassionate Cultivation That’s right, medical marijuana is legal in Texas. Although the state’s program pales in comparison to the full medical programs of its neighbors, qualified Texans can access low-THC medical marijuana if they have a qualifying condition. Here’s what you need to know about what is legal, who qualifies, and how to get a prescription for medical marijuana in Texas. What is legal in Texas?